| E | East or eastern longitude |
| EAT | Expected approach time |
| EANPG | European air navigation planning group |
| EATMS | European air traffic management system |
| EB | Eastbound |
| ECAC | European civil aviation conference |
| EET | Estimated elapsed time |
| EHF | Extremely high frequency (30 000 MHz to 300 000 MHz) |
| ELBA | Emergency location beacon−aircraft |
| ELEV | Elevation |
| ELR | Extra long range |
| EM | Emission |
| EMBD | Embedded in a layer (to indicate kumulonimbus embedded in layers of other clouds) |
| EMERG | Emergency |
| EN | English language |
| END | Stop−end (related to RVR) |
| ENE | East−north−east |
| ENG | Engine |
| ENR | En route |
| ENRC | Enroute chart (followed by name/title) |
| EOBT | Estimated off−block time |
| EQPT | Equipment |
| EPNdB | Unit of effective perceived noise level |
| EPNL | Effective perceived noise level |
| ESE | East−south−east |
| EST | Estimate or estimated or estimate (message type designator) |
| ETA | Estimated time of arrival or estimating arrival |
| ETD | Estimated time of departure or estimating departure |
| ETO | Estimated time over significant point |
| EU | European Union |
| EUR | European Region |
| EV | Every |
| EXC | Except |
| EXER | Exercises or exercising or to exercise |
| EXP | Expect or expected or expecting |
| EXTD | Extend or extending |
© 2012-21 Kristina Novotna